We will be using the key terms below throughout this lesson and we will define them as we go along. If you are unsure at any point then use the link in the 'Useful Links' section to remind yourself of what the words mean or refer to.
Crust
Mantle
Inner Core
Outer Core
Subduction
Magma
Lava
To understand the eruption of Vesuvivus in 79AD we need to go back a few steps to gain knowledge of the different layers of the Earth and why our plates move. We are going to start of with investigating the inside of the Earth by watching the two YouTube clips in the 'Useful Resources' box. To focus your attention you will be given a question grid to fill in as you watch the clips.
Fiction versus reality
You now know how the Earth is made of four main layers but that they can be divided further. That is all interesting but as humans we are very focused on what makes the crust or lithosphere move as this in turn impacts us. The movement helps to create mountain ranges, trenches, new land and seas along with natural disasters. Knowledge of the natural disasters can have a huge impact on how we learn to adapt to be able to live in certain areas of the world. The Earth's lithosphere is divided into 16 individual plates. The majority of the natural disasters, such as earthquakes and tsunamis occur on or close to these plate margins.
Watch the YouTube link below and write an explanation to show how the plates move. Aim to write three sentences.
The plates move because...
Collect a copy of the worksheet in the 'Useful Resources' box. Describe the four main ways that the plates of our Earth move. Use the link in the 'Useful Resources. To Read' box to help you to do this.
Plate Tectonics - How the Earth Works